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org.wildfly.clustering.ejb.infinispan.timer.InfinispanTimerManager Maven / Gradle / Ivy
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An implementation of wildfly-clustering-ejb-spi based on an embedded Infinispan cache.
/*
* Copyright The WildFly Authors
* SPDX-License-Identifier: Apache-2.0
*/
package org.wildfly.clustering.ejb.infinispan.timer;
import java.io.IOException;
import java.lang.reflect.Method;
import java.time.Duration;
import java.util.AbstractMap;
import java.util.function.BiConsumer;
import java.util.function.Consumer;
import java.util.function.Supplier;
import java.util.stream.Stream;
import org.infinispan.Cache;
import org.infinispan.remoting.transport.Address;
import org.wildfly.clustering.dispatcher.CommandDispatcherFactory;
import org.wildfly.clustering.ee.Batcher;
import org.wildfly.clustering.ee.Key;
import org.wildfly.clustering.ee.Scheduler;
import org.wildfly.clustering.ee.cache.CacheProperties;
import org.wildfly.clustering.ee.cache.IdentifierFactory;
import org.wildfly.clustering.ee.cache.tx.TransactionBatch;
import org.wildfly.clustering.ee.infinispan.PrimaryOwnerLocator;
import org.wildfly.clustering.ee.infinispan.affinity.AffinityIdentifierFactory;
import org.wildfly.clustering.ee.infinispan.scheduler.PrimaryOwnerScheduler;
import org.wildfly.clustering.ee.infinispan.scheduler.ScheduleLocalKeysTask;
import org.wildfly.clustering.ee.infinispan.scheduler.ScheduleWithMetaDataCommand;
import org.wildfly.clustering.ee.infinispan.scheduler.ScheduleWithTransientMetaDataCommand;
import org.wildfly.clustering.ee.infinispan.scheduler.SchedulerTopologyChangeListener;
import org.wildfly.clustering.ejb.cache.timer.ImmutableTimerMetaDataFactory;
import org.wildfly.clustering.ejb.cache.timer.IntervalTimerMetaDataEntry;
import org.wildfly.clustering.ejb.cache.timer.RemappableTimerMetaDataEntry;
import org.wildfly.clustering.ejb.cache.timer.ScheduleTimerMetaDataEntry;
import org.wildfly.clustering.ejb.cache.timer.TimerFactory;
import org.wildfly.clustering.ejb.cache.timer.TimerIndex;
import org.wildfly.clustering.ejb.cache.timer.TimerMetaDataFactory;
import org.wildfly.clustering.ejb.timer.ImmutableTimerMetaData;
import org.wildfly.clustering.ejb.timer.IntervalTimerConfiguration;
import org.wildfly.clustering.ejb.timer.ScheduleTimerConfiguration;
import org.wildfly.clustering.ejb.timer.Timer;
import org.wildfly.clustering.ejb.timer.TimerManager;
import org.wildfly.clustering.ejb.timer.TimerRegistry;
import org.wildfly.clustering.infinispan.distribution.CacheLocality;
import org.wildfly.clustering.infinispan.distribution.Locality;
import org.wildfly.clustering.infinispan.distribution.SimpleLocality;
import org.wildfly.clustering.infinispan.listener.ListenerRegistration;
import org.wildfly.clustering.marshalling.spi.Marshaller;
import org.wildfly.clustering.server.group.Group;
/**
* A timer manager backed by an Infinispan cache.
* @author Paul Ferraro
*/
public class InfinispanTimerManager implements TimerManager {
private final Cache, ?> cache;
private final CacheProperties properties;
private final TimerFactory, C> factory;
private final Marshaller marshaller;
private final IdentifierFactory identifierFactory;
private final Batcher batcher;
private final CommandDispatcherFactory dispatcherFactory;
private final Group group;
private final TimerRegistry registry;
private volatile Scheduler scheduledTimers;
private volatile Scheduler scheduler;
private volatile ListenerRegistration schedulerListenerRegistration;
public InfinispanTimerManager(InfinispanTimerManagerConfiguration config) {
this.cache = config.getCache();
this.properties = config.getCacheProperties();
this.marshaller = config.getMarshaller();
this.identifierFactory = new AffinityIdentifierFactory<>(config.getIdentifierFactory(), this.cache, config.getKeyAffinityServiceFactory());
this.batcher = config.getBatcher();
this.dispatcherFactory = config.getCommandDispatcherFactory();
this.group = config.getGroup();
this.factory = config.getTimerFactory();
this.registry = config.getRegistry();
}
@Override
public void start() {
Supplier locality = () -> new CacheLocality(this.cache);
TimerScheduler, C> localScheduler = new TimerScheduler<>(this.factory, this, locality, Duration.ofMillis(this.cache.getCacheConfiguration().transaction().cacheStopTimeout()), this.registry);
this.scheduledTimers = localScheduler;
this.scheduler = this.group.isSingleton() ? localScheduler : new PrimaryOwnerScheduler<>(this.dispatcherFactory, this.cache.getName(), localScheduler, new PrimaryOwnerLocator<>(this.cache, this.group), InfinispanTimerMetaDataKey::new, this.properties.isTransactional() ? ScheduleWithMetaDataCommand::new : ScheduleWithTransientMetaDataCommand::new);
TimerRegistry registry = this.registry;
BiConsumer scheduleTask = new ScheduleLocalKeysTask<>(this.cache, TimerMetaDataKeyFilter.INSTANCE, new Consumer() {
@Override
public void accept(I id) {
localScheduler.schedule(id);
registry.register(id);
}
});
this.schedulerListenerRegistration = new SchedulerTopologyChangeListener<>(this.cache, localScheduler, scheduleTask).register();
scheduleTask.accept(new SimpleLocality(false), new CacheLocality(this.cache));
this.identifierFactory.start();
}
@Override
public void stop() {
this.identifierFactory.stop();
ListenerRegistration registration = this.schedulerListenerRegistration;
if (registration != null) {
registration.close();
}
Scheduler scheduler = this.scheduler;
if (scheduler != null) {
scheduler.close();
}
}
@Override
public Timer createTimer(I id, IntervalTimerConfiguration config, Object context) {
try {
RemappableTimerMetaDataEntry entry = new IntervalTimerMetaDataEntry<>(this.marshaller.write(context), config);
return this.createTimer(id, entry, (TimerIndex) null);
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
@Override
public Timer createTimer(I id, ScheduleTimerConfiguration config, Object context) {
try {
RemappableTimerMetaDataEntry entry = new ScheduleTimerMetaDataEntry<>(this.marshaller.write(context), config);
return this.createTimer(id, entry, (TimerIndex) null);
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
@Override
public Timer createTimer(I id, ScheduleTimerConfiguration config, Object context, Method method, int index) {
try {
RemappableTimerMetaDataEntry entry = new ScheduleTimerMetaDataEntry<>(this.marshaller.write(context), config, method);
return this.createTimer(id, entry, new TimerIndex(method, index));
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
private Timer createTimer(I id, RemappableTimerMetaDataEntry entry, TimerIndex index) {
TimerMetaDataFactory, C> metaDataFactory = this.factory.getMetaDataFactory();
if (metaDataFactory.createValue(id, new AbstractMap.SimpleImmutableEntry<>(entry, index)) == null) return null; // Timer with index already exists
ImmutableTimerMetaData metaData = metaDataFactory.createImmutableTimerMetaData(entry);
Timer timer = this.factory.createTimer(id, metaData, this, this.scheduledTimers);
return timer;
}
@Override
public Timer getTimer(I id) {
ImmutableTimerMetaDataFactory, C> metaDataFactory = this.factory.getMetaDataFactory();
RemappableTimerMetaDataEntry entry = metaDataFactory.findValue(id);
if (entry != null) {
ImmutableTimerMetaData metaData = metaDataFactory.createImmutableTimerMetaData(entry);
return this.factory.createTimer(id, metaData, this, this.scheduledTimers);
}
return null;
}
@Override
public Stream getActiveTimers() {
// The primary owner scheduler can miss entries, if called during a concurrent topology change event
return this.group.isSingleton() ? this.scheduledTimers.stream() : this.cache.keySet().stream().filter(TimerMetaDataKeyFilter.INSTANCE).map(Key::getId);
}
@Override
public Supplier getIdentifierFactory() {
return this.identifierFactory;
}
@Override
public Batcher getBatcher() {
return this.batcher;
}
@Override
public String toString() {
return this.cache.getName();
}
}